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Geom025:   How big is quadrilateral DBEF?
You might want to draw another line to help you!  (Difficulty Level: © 2)
Geometry/Geom025.jpg ABC is a general triangle and its area is equal to 132 cm square

The opposite side of edge A is divided in 4 equal parts and the opposite side of edge C in 3 equal parts

Straight lines join the point A to each quarter of line BC. Likewise, from point B to each third of line AB.

How big is the area of quadrilateral DBEF?
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